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We completely determine cohomology groups of sections of homogeneous line bundles over a toroidal group.

Complex Variables · Mathematics 2016-09-16 Yukitaka Abe

We study (slope-)stability properties of syzygy bundles on a projective space P^N given by ideal generators of a homogeneous primary ideal. In particular we give a combinatorial criterion for a monomial ideal to have a semistable syzygy…

Algebraic Geometry · Mathematics 2007-08-01 Holger Brenner

Given a projective morphism of compact, complex, algebraic varieties and a relatively ample line bundle on the domain we prove that a suitable choice, dictated by the line bundle, of the decomposition isomorphism of the Decomposition…

Algebraic Geometry · Mathematics 2007-10-16 Mark Andrea de Cataldo , Luca Migliorini

This is the second paper of a series. It extends the results of the first paper from number fields to finitely generated fields, based on the recent theory of adelic line bundles of the same authors. We prove an arithmetic Hodge index…

Number Theory · Mathematics 2021-08-24 Xinyi Yuan , Shou-Wu Zhang

We generalize the results of Montgomery for the Bochner Laplacian on high tensor powers of a line bundle. When specialized to Riemann surfaces, this leads to the Bergman kernel expansion and geometric quantization results for semi-positive…

Differential Geometry · Mathematics 2024-07-10 George Marinescu , Nikhil Savale

Recently, in paper published in the Annals of Mathematics, it was shown that the Bohnenblust-Hille inequality for (complex) homogeneous polynomials is hypercontractive. However, and to the best of our knowledge, there is no result providing…

Functional Analysis · Mathematics 2012-08-31 Daniel Nuñez-Alarcón

We show that Schur classes of ample vector bundles on smooth projective varieties satisfy Hodge-Riemann relations on $H^{p,q}$ under the assumption that $H^{p-2,q-2}$ vanishes. More generally, we study Hodge-Riemann polynomials, which are…

Algebraic Geometry · Mathematics 2025-11-07 Qing Lu , Weizhe Zheng

In this paper, by refining approximation theorems for holomorphic sections of adjoint line bundles, it is proved that the regular locus of a weakly pseudoconvex complex space admitting a positive line bundle can be holomorphically embedded…

Complex Variables · Mathematics 2025-12-30 Yuta Watanabe

We study the existence of asymptotically $Z$-stable (a.Z stable) bundles over polycyclic surfaces. Our choice of polynomial central charge is related to the existence of solutions of the deformed Hermitian--Yang--Mills equations, with…

Algebraic Geometry · Mathematics 2026-04-23 Luiz Lara , Henrique N. Sá Earp

We prove that strength and slice rank of homogeneous polynomials of degree $d \geq 5$ over an algebraically closed field of characteristic zero coincide generically. To show this, we establish a conjecture of Catalisano, Geramita,…

Algebraic Geometry · Mathematics 2021-02-24 Edoardo Ballico , Arthur Bik , Alessandro Oneto , Emanuele Ventura

Let $L$ be a holomorphic line bundle on a compact complex manifold $X$ of dimension $n,$ and let $e^{-\phi}$ be a continuous metric on $L.$ Fixing a measure $d\mu$ on $X$ gives a sequence of Hilbert spaces consisting of holomorphic sections…

Complex Variables · Mathematics 2008-05-20 Robert Berman , David Witt Nystrom

We study a variety of questions centered around the computation of cohomology of line bundles on the incidence correspondence (the partial flag variety parametrizing pairs consisting of a point in projective space and a hyperplane…

Algebraic Geometry · Mathematics 2024-11-21 Annet Kyomuhangi , Emanuela Marangone , Claudiu Raicu , Ethan Reed

In this paper we study the extension of structure group of principal bundles with a reductive algebraic group as structure group on smooth projective varieties defined over algebraically closed field of positive characteristic. Our main…

Algebraic Geometry · Mathematics 2011-11-14 Sudarshan Gurjar , Vikram Mehta

We prove that any unstable holomorphic 2-bundle over the complex projective space of complex dimension n at least 6 must split into a direct sum of two holomorphic line bundles. The statement with the weaker dimension condition of n at…

Complex Variables · Mathematics 2015-05-11 Yum-Tong Siu

We consider a uniform $r$-bundle $E$ on a complex rational homogeneous space $X$ %over complex number field $\mathbb{C}$ and show that if $E$ is poly-uniform with respect to all the special families of lines and the rank $r$ is less than or…

Algebraic Geometry · Mathematics 2020-07-15 Rong Du , Xinyi Fang , Yun Gao

We give an extensive study on the Bergman kernel expansions and the random zeros associated with the high tensor powers of a semipositive line bundle on a complete punctured Riemann surface. We prove several results for the zeros of…

Complex Variables · Mathematics 2024-07-23 Bingxiao Liu , Dominik Zielinski

We present a proof of the algorithm for computing line bundle valued cohomology classes over toric varieties conjectured by R.~Blumenhagen, B.~Jurke and the authors (arXiv:1003.5217) and suggest a kind of Serre duality for combinatorial…

High Energy Physics - Theory · Physics 2010-11-11 Helmut Roschy , Thorsten Rahn

We explain how Teleman quantization can be applied to moduli spaces of quiver representations to compute the higher cohomology of the endomorphism bundle of the universal bundle. We use this to prove Schofield's partial tilting conjecture,…

Algebraic Geometry · Mathematics 2023-12-06 Pieter Belmans , Ana-Maria Brecan , Hans Franzen , Gianni Petrella , Markus Reineke

This paper provides some technical results needed in "Formalism for Relative Gromov-Witten Invariants." We study line-bundles on the moduli stacks of relative stable and rubber maps that are used to define relative Gromov-Witten invariants…

Algebraic Geometry · Mathematics 2007-05-23 Eric Katz

This is the first paper of a series. We prove an arithmetic Hodge index theorem for adelic line bundles on projective varieties over number fields. It extends the arithmetic Hodge index theorem of Faltings, Hriljac and Moriwaki on…

Number Theory · Mathematics 2013-04-15 Xinyi Yuan , Shou-Wu Zhang